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<title>F()演示</title>
<script type="text/javascript" src="../../1st.js"></script>
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<body>
<div id="box"></div>

<script type="text/javascript">
var obj = document.getElementById("box");
var fo = F("box");
alert(F("box").tag);
alert(F(obj).tag);
alert(F(fo).tag);
</script>
</body>
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